Question

Mark (✓) against the correct answer:
The circumference of the circular base of a cylinder is 44 cm and its height is 15 cm. The volume of the cylinder is
(a) 1155 cm³
(b) 2310 cm³
(c) 770 cm³
(d) 1540 cm³

Answer 1

(b) 2310 cm³

Height = 15 cm
Circumference$=2\mathrm{\pi r}=44\mathrm{cm}$
$\therefore r=\frac{44\times 7}{2\times 22}=7cm$
∴ Volume$={\mathrm{\pi r}}^2\mathrm{h}=\frac{22}{7}\times 7\times 7\times 15=2310{\mathrm{cm}}^3$